A tire is rotating 480 times per in. Through how many degrees does a point on the edge of the tire move in 1/4 sec?
​

7x+8y=-18, 4x-9y=-3 solve the system of equations

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Which strategy is used by public health to reduce the incidence of food poisoning?